SOUTH AFRICAN HOME GUIDE
15 Ways to Save Electricity in South Africa
The most useful ways to save electricity start with understanding your home. Find everyday changes, sensible upgrades and a practical plan for using fewer kilowatt-hours without giving up essential comfort.
Explore the 15 actions
Which ways to save electricity should you try first?
Ways to save electricity work best when they target something your household actually uses heavily.
Begin with hot water, heating and cooling, then look at frequently used appliances. A long-running heater can deserve more attention than an occasional light. Your priorities depend on equipment, household size, working hours, climate and the condition of the building.
Separate three goals: reducing the electricity your home consumes, lowering the amount bought from the grid, and keeping equipment running during an outage. Insulation, efficient appliances, solar panels and batteries contribute differently to these goals.
This guide combines everyday habits with larger improvements. Choose two manageable changes first. Comparing your readings is more useful than collecting a long list of ways to save electricity that nobody follows.
Prioritise ways to save electricity by cost and purpose
Use this starting framework before buying equipment. It is a decision aid, not a ranking of guaranteed savings: a home without a pool has no pool-pump opportunity, while a home already well insulated may benefit more elsewhere.
| Starting point | Useful actions | What to check |
|---|---|---|
| Little or no spending | Shorter showers, suitable wash settings, switching off unused equipment | Habits, comfort and whether the change is sustainable |
| Modest improvements | LED lamps, repaired seals, compatible showerheads, appliance maintenance | Compatibility and the amount of use being addressed |
| Building upgrades | Ceiling insulation, targeted draught repairs and suitable shading | Existing condition, climate, ventilation and installation quality |
| Equipment investment | Efficient replacement appliances or a different hot-water system | Measured demand, installed cost, servicing and realistic savings |
The right ways to save electricity are those that solve a real source of waste in your home.
YOUR PRACTICAL CHECKLIST
15 ways to save electricity at home
1. Establish a consumption baseline
Record the meter reading at the same time each day for a week. Note visitors, unusually cold weather, extra laundry and time spent away. For prepaid electricity, record units used rather than comparing top-up amounts alone.
Divide consumption by the number of days to compare periods fairly. A suitably rated plug-in energy monitor can help with compatible plug-in appliances; fixed circuits need appropriate professional metering. Identifying large loads helps you choose ways to save electricity with a measurable starting point.
2. Reduce avoidable hot-water use
Shorten showers where practical, repair dripping hot taps and avoid running hot water for tasks that cold water handles adequately. Check showerhead compatibility with your water pressure and heater before replacing it.
Among the everyday ways to save electricity, reducing unnecessary hot-water demand can be particularly relevant to homes with electric geysers. Keep appropriate hygiene and safe water temperatures. Ask a qualified plumber about thermostat settings, pipe insulation and whether an additional geyser blanket suits your system; avoid opening electrical covers yourself.
3. Improve lighting where it runs longest
Replace inefficient lamps with suitable LEDs, starting with lights used for several hours daily. Compare brightness in lumens, as well as watts, colour temperature and dimmer compatibility. An uncomfortable replacement that immediately gets removed is a poor purchase.
Switch off lighting in empty rooms and make sensible use of daylight. Timers or sensors may help outdoor lighting, provided security needs remain covered. Review actual operating hours when comparing ways to save electricity through lighting.
4. Boil only the water you need
For tea or coffee, fill the kettle for the number of cups being made while respecting its minimum fill line. Avoid repeatedly boiling a full kettle for one drink.
This is a small, repeatable habit. Its value depends on how often the kettle is used and how much unnecessary water was previously heated. Keep easy kitchen changes alongside bigger priorities rather than expecting one habit to transform the whole bill.
5. Match cooking equipment to the meal
A smaller appliance can be useful for a small portion, while a full oven may make sense for several dishes cooked together. Use suitable lids and match pans to hob plates. Avoid repeatedly opening an oven during cooking.
Compare the whole cooking task, including preheating and any repeated batches. A low wattage rating alone does not prove lower energy use if the appliance needs much longer to finish. Follow cooking and food-safety instructions for the meal.
6. Help the fridge work properly
Check door seals, keep the required ventilation space clear and follow the manufacturer's cleaning and defrosting instructions. Keep the appliance away from avoidable heat where the kitchen layout allows.
Use recommended food-storage temperatures and minimise unnecessary door opening. Switching a fridge off overnight is not a sensible substitute for proper operation. If an older appliance seems unusually hungry, measure its consumption over several days before deciding whether repair or replacement is worthwhile.
7. Choose suitable laundry and dishwasher cycles
Run appropriately full loads without overloading. Choose a lower-temperature or eco programme where it suits the fabric, detergent, soil level and hygiene requirements. Programme duration alone does not tell you which cycle uses less electricity: consult the machine's consumption information.
For dishwashers, scrape off food and follow the loading instructions. These ways to save electricity work through fewer avoidable cycles and appropriate settings, rather than leaving clothes or dishes inadequately cleaned.
8. Reduce unnecessary tumble drying
Use a washing line when conditions allow. Where machine drying is needed, use a suitable washer spin setting first, clean the dryer's lint filter as instructed and avoid overloading.
A moisture-sensing programme can prevent unnecessary drying after the load is ready. Indoor air drying also needs ventilation to manage moisture. These practical ways to save electricity are most relevant to households that regularly use a dryer, especially during wet weather.
9. Review standby and always-on equipment
Check televisions, entertainment systems, computers and other equipment left running without a purpose. Enable suitable sleep settings and switch off nonessential equipment when it is not needed.
Standby consumption varies considerably; measure suspect devices rather than assuming every charger is a major load. Preserve power to medical equipment, alarms, refrigeration and anything that needs continuous operation. For home offices, agree when screens and workstations can shut down without interrupting updates or essential access.
10. Heat and cool occupied spaces thoughtfully
Use comfortable, appropriate settings and avoid conditioning unused areas where the system allows. Keep filters and equipment maintained according to the manufacturer. Close external openings while air conditioning is operating, while retaining required ventilation.
Avoid extreme settings intended to make a room comfortable faster. Review schedules when work or school routines change. Ways to save electricity should preserve the needs of children, older people and anyone with particular temperature requirements, rather than applying one temperature rule to everyone.
11. Address draughts and unwanted solar heat
Repair unintended gaps around doors and windows. Use appropriate curtains or shading to manage heat entering or leaving occupied rooms. External shading can help a sun-exposed window, but the useful design depends on orientation and seasonal needs.
Keep ventilation, drainage openings and combustion-air provisions functional. For window film, confirm glazing compatibility and how it changes daylight and winter solar warmth. Prioritise the rooms where discomfort leads to frequent heating or cooling before treating every window alike.
12. Assess your ceiling insulation
Insulation slows heat transfer through the ceiling. Check existing coverage, gaps, condition and the specified R-value before choosing a product. Address leaks and installation constraints first.
Its electricity-saving potential depends on whether you currently heat or cool the home electrically, the climate and the improvement achieved. An unheated home may gain comfort without a large electricity reduction. Compare types of ceiling insulation and read about ceiling insulation benefits before requesting a specification.
13. Check pool-pump operation, if applicable
Confirm the timer programme, keep the filtration system maintained and ask a pool professional whether the pump and schedule suit your pool. A variable-speed pump may offer an opportunity when correctly selected and set up.
Required operation depends on the pool, filtration, sanitation system, season and use. Avoid adopting a universal number of hours from an online list. Pool owners comparing ways to save electricity should check both measured consumption and water quality after any adjustment.
14. Compare energy use when replacing appliances
Use the South African energy label where applicable. Compare appliances of an appropriate size and function, checking the stated kWh figure and whether it refers to a year, cycle or another test basis.
An efficient oversized appliance may still use more electricity than a smaller suitable model. Consider purchase price, expected use, repairability and running costs together. These ways to save electricity are especially useful when an appliance already needs replacement; an efficiency claim alone does not establish that replacing a working unit will pay back quickly.
15. Investigate a better hot-water system
For substantial electric water-heating demand, compare a correctly designed solar water heater or heat-pump system with your existing arrangement. Solar thermal collectors capture heat; a heat pump uses electricity to move heat into the water.
Ask about capacity, site suitability, backup heating, controls, servicing and total installed cost. These larger ways to save electricity require a household-specific assessment. Avoid treating an advertised water-heating saving as the same percentage reduction in your entire electricity bill.
Put numbers behind your ways to save electricity
For a device drawing constant power, energy use is power in kilowatts multiplied by operating hours. Divide watts by 1,000 to obtain kilowatts. Use measured consumption where equipment cycles or varies its output.
Illustrative example — not a current tariff or savings promise
A 2 kW load running continuously for one hour each day uses 2 × 1 × 30 = 60 kWh over 30 days. Avoiding that consumption would reduce the energy charge by R180 at an assumed flat rate of R3 per kWh.
A thermostatically controlled heater may run for only part of an hour. Its nameplate rating multiplied by every hour it is switched on can therefore overestimate consumption.
Use your supplier's actual tariff. Fixed charges, tariff blocks, time-based pricing where applicable and other bill components affect the rand result. Ways to save electricity can lower kWh even when a tariff increase means the total bill does not fall.
Where do solar panels and batteries fit?
Solar PV generates electricity and can reduce grid purchases. That does not automatically mean your appliances consume fewer kWh. Batteries store energy for later use and incur conversion and storage losses; they are not electricity generators.
When considering ways to save electricity, assess avoidable demand before sizing a solar or backup system. Separate the value of backup power from expected bill savings. A solar proposal should state its assumptions about daytime use, tariffs, export arrangements, storage and equipment replacement.
A 30-day plan for ways to save electricity
Turn the guide into a short household experiment. Keep a record of what changed so that a lower reading has a plausible explanation.
- Days 1–7: establish the baseline. Record daily kWh and note unusual weather or occupancy. List the equipment you suspect uses the most energy.
- Days 8–14: choose two habit changes. Agree who will do what. Examples include shorter showers and avoiding unnecessary dryer cycles.
- Days 15–21: inspect one improvement. Check lighting, seals or insulation condition. Obtain a suitable quotation if work is needed.
- Days 22–30: review and adjust. Compare daily averages, considering weather and use. Keep workable habits and investigate changes that made little difference.
A short comparison suggests progress; it does not prove annual savings. Revisit your ways to save electricity in another season, especially if heating and cooling dominate your consumption.
MAKE THE BUILDING WORK BETTER
Planning ceiling insulation?
If your ways to save electricity include improving the ceiling, start with the existing roof space and the result you need. Match the material, coverage and installation details to your home.
Eco Friendly Homes directs product and installation enquiries to the associated businesses Roof Insulations and Cape Ceilings & Drywalling. These links concern insulation; solar, plumbing and appliance work require the appropriate service provider.
Questions about ways to save electricity
What are the easiest ways to save electricity without buying anything?
Start with unnecessary operating time: shorter showers, suitable appliance programmes, fuller loads and switching off unused nonessential equipment. Choose actions that fit your household and compare meter readings.
Will a geyser timer automatically save electricity?
No fixed saving follows from installing a timer. Results depend on water use, standing losses, the control schedule and the system. Moving heating to another time may change costs under a suitable tariff without reducing the energy needed. Get appropriate installation and temperature advice.
Does ceiling insulation reduce the whole bill by a set percentage?
No. It affects heating and cooling demand, not every appliance. Results depend on the building, climate, existing insulation and household behaviour. Comfort improvements can be valuable even when the measured electricity saving is modest.
Are the same ways to save electricity suitable for tenants?
Many habit changes are. For fixed equipment, ceiling work or changes to the building, obtain the landlord's approval and agree responsibilities before spending. Start with permitted changes that you can maintain throughout the tenancy.
How can I tell whether a change has worked?
Compare kWh per day over reasonably comparable periods. Account for weather, occupancy, hot-water demand and new appliances. A rand comparison alone can be distorted by tariff changes, billing periods or fixed charges.
Sources and further reading
South African guidance: Eskom on hot water, household appliances, lighting and insulation; the Department of Electricity and Energy on appliance labelling; and the government’s 2018 label explainer.
General equipment principles: ENERGY STAR guidance for refrigerators, washing machines, dryers and pool pumps; US Department of Energy guidance on heat-pump water heating. See also its low-cost household tips. Overseas costs, incentives and household saving percentages have not been applied to South African homes.
